The earlier version is lovely - the lack of obvious links in the main page is a problem, the links to working versions may be there and it's possible I haven't seen them but this is part of the definition of 'no OBVIOUS' links! No add-on developer should be collaborating in this desire to herd the sheeple into auto-update braindeath, "Automatically update" == "oh yes master developer I trust you to run anything you like on my system anytime you feel like it" Or, in my case NOT.

Your earlier version is lovely, you should be making it obviously available and telling people that Firefox 52 ESR is perfectly functional, with none of the RUSTbucket crippling the Chrome-Crazy development team want to inflict!

All the good add-ons work ok on Firefox 52, if you get 52.2.0 then you may need to alter about:config to force it not to complain about version numbers (do a websearch!) but otherwise it's equally lovely.

An epub library interface is necessary! For example, now i've to search the ebook in a directory full of other titles whenever is necessary to open it again. It's a little disgrace.My solution:- Install Firefox ESR 52.0 portable- Install EPUBReader version 1.5.0.12VOILÀ! Back to practicality.

It used to be a great add-on till they changed it all. Now you don't have a visible index on the left side like you used to have, you can't just switch to another chapter that easy anymore or see where you are at, you need to to go to the index button first to make the index visible and if you want to further read your last page you have to close the index again. It is not possible to see the index and the page you want to read simultaneously. A sidebar would be way better than an autohide bar or at least the choice between those two and not just the autohide bar this add-on has now. I also can't just click on a epub download and it opens automatically in the epubreader, instead I have to save it, go to firefox open the epubreader and then search for my book which is really annoying and not user friendly. The older version is great and much more usable, this new one has too much flaws.

A lightbulb icon looks like it would be a dark mode switch but no, it opens up a FAQ.

Settings make it too easy to set a background without changing the text color (The options aren't next to each other, and the default custom color scheme is black on black. What would be really nice is a dropdown of a few color schemes on the scale of light and dark, with the option to make a custom scheme.)

In the "Website" reading mode, a cover image was displayed absolutely bonkers huge, filling the width of the screen even tho it's 324x500 (small, so it was really pixely, and tall, meaning it didn't even fit on the screen because the size was based solely on the width).

Finally, nail in the coffin, "The ebook is incomplete and can unfortunately not be opened." (even tho it did open it at first, and showed at least the table of contents and part of the first chapter)